Metalljc lath



(No Model.)

J. W. WISSI-NGBR.

' METALLIC LATH.

No. 307,893. Patented Nov. 11, 1884 N, PETER$ FlwluLilhugnbher. wmi n nnnn (2 IINITE STATES PArENr @rrrce.

JOHN \V. Y WVISSINGER, OF SAN FRANCISCO, CALIFORNIA.

METALLiC LATH.

SPECIFICATION forming part of Letters Patent No. 307,893, dated November 11, 1884. Application filed August 30, 1884. (N0 model.)

To all whom, it may concern.-

Be it known that I, JOHN W. \Vrssrnenn, of the city and county of San Francisco, and State of California, have invented an Improvement in Metallic Laths; and I hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to certain improve ments in metallic lathor covering; and it consists in the construction and arrangement of the devices hereinafter described and claimed.

Referring to the accompanying drawings for a more complete explanation of my invention, Figure 1 is a view showing a number of my laths secured in position. Fig. 2 is a horizontal section of the same. Fig. 3 is a vertical transverse section showing a lath and the manner of securing it. Figs. 4 and 5 show the securing devices. I

In the construction of my improved laths I employ thin sheets of metal of suitable length and thickness. These sheets are shown at A, and they have one end turned up, preferably at an obtuse angle, forming a flange, as shown at B. At the opposite end they are turned up so as to form an acute or corresponding angle, as shown at O, and are then bent again so as to form a narrower flange, D, which stands parallel with the part A and at a sufficient distance from it to allow the mortar or cement which is used to pass beneath this flange D, and thus form a sufficient lock or key to hold it in place. In some cases the flange D may form a continuous curve from the part 0, so as to overlap the projecting flange B of the adjacent lath, as shown in Fig. 4, and the angles formed by the flanges B C may vary to suit requirements. In some cases the laths are formed with alongitudinal ridge or arched portion, a, which serves to stiffen them, and as it projects up between the flanges B and C it also reduces the amount of mortar used. Vhen these laths are placed upon the supporting frame-work or timbers, they are placed so that the flange B of each lath is uppermost when secured, to form a vertical or inclined wall, and the flange C of the next lath above lies closely against it, with the part D projecting over the upturned edge B.

If used upon a roof where cement may be placed upon it to form an exterior covering, these laths may be placed in the manner herein shown, or they may be placed extending longitudinally up and down the incline. In either case the overlapping flanges B, O, and D form water-proof joints through which rain cannot pass. If placed longitudinally up and down the incline of the roof, the laths themselves would form gutters to conveythe water away, if not covered.

In order to secure these laths in place,I emp'loyhook-bolts E, the hook being of sufficient size to pass around the metallic supports for the laths, and having a shank provided with a head, F, at the opposite end, which extends through a hole or slot in the lath so as to be on the outer side.

G is a wedge-shaped key, having a slot, H, made in it, extending from the thinner edge backward toward the thickest portion. This key is inserted between the head F of the hook-bolt and the edge of the lath, being driven in so that the slot H encircles the shank of the bolt, and the increasing thickness of the wedge forces the lath against the side of the supporting-frame, while the hook is drawn closely against the opposite side, thus holding the lath firmly in place. After the laths are in position,with mortar or cement spread upon them in the usual manner of plastering walls, the hook or angular flanges D will form a sufficient bond to retain it in place. By this construction the laths are formed so as to re ceive the mortar or cement upon one side, while the opposite side shows a perfectlysmooth surface, the edges abutting closely, and it may be painted or otherwise finished, as described. The inner surface of the wedge is slightly concave, which causes it to make a better look.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

. 1. Alath composed of a strip of sheet metal bent at the edges so that flanges project outward at any required angle or curve, with the alternate flanges bent so as to overlap the next adjacent ones,'while the inner or opposite surfaces of the laths abut so as to form a smooth and continuous surface, in combination with a hook and slotted wedge for securing the laths, substantially as herein described.

2. Laths composed of strips of sheet metal,

ICO

bent so as to have outwardly-projecting and a slotted wedge fitting the shank of the bolt overlapping flanges upon one side, While the between the head and the lath, substantially meeting edges abut so as to produce a continas herein described. nous surface upon the opposite side, together In witness whereof I have hereunto set my 5 with the L-shaped bolts having a head upon hand.

one end, and the wedge-shaped locking-block, T substantially as herein described. JOHN VISSIL 3. A means for securing metallic laths to Witnesses: their supporting frame-work, consisting of L- GEO. H. STRONG, 1o shaped bolts having a head upon one end and S. H. NoURsE. 

